/**
 * HAIIA 協会活動 ページ専用スタイル
 * about.css のデザインシステムを継承
 */

/* ==========================================================================
   Variables (共通)
   ========================================================================== */
:root {
    --haiia-primary: #335e4a;
    --haiia-primary-dark: #1a3d2e;
    --haiia-primary-light: #abcaaa;
    --haiia-accent: #0066cc;
    --haiia-accent-dark: #004499;
    --haiia-warning: #c0392b;
    --haiia-warning-bg: #fef2f2;
    --haiia-success: #27ae60;
    --haiia-success-bg: #f0fdf4;
    --haiia-text: #1a1a1a;
    --haiia-text-muted: #555555;
    --haiia-bg-light: #f7f9fc;
    --haiia-bg-dark: #0f172a;
    --haiia-border: #e2e8f0;
    --haiia-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --haiia-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --haiia-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --haiia-radius: 8px;
    --haiia-radius-lg: 16px;
    --haiia-radius-xl: 24px;
}

/* ==========================================================================
   Site Body Override - 上部余白削除
   ========================================================================== */
@media (min-width: 1200px) {
    .site-body {
        padding-top: 0;
    }
}

/* ==========================================================================
   Page Header (about.css から継承)
   ========================================================================== */
.haiia-page-header {
    background: linear-gradient(135deg, var(--haiia-primary-dark) 0%, var(--haiia-primary) 100%);
    padding: 4rem 0;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.haiia-page-header::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.haiia-page-header .haiia-page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0 0 0.5rem;
    letter-spacing: 0.05em;
}

.haiia-page-header .haiia-page-subtitle {
    font-size: 1.1rem;
    opacity: 0.85;
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Base Content Styles
   ========================================================================== */
.haiia-activities-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--haiia-text);
    padding: 3rem 0;
}

.haiia-activities-content p {
    margin-bottom: 1.25em;
    color: var(--haiia-text-muted);
}

.haiia-activities-content strong {
    color: var(--haiia-text);
    font-weight: 700;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */
.haiia-activities-section {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--haiia-border);
}

.haiia-activities-section:last-child {
    border-bottom: none;
}

/* 導入セクション */
.haiia-activities-intro {
    text-align: center;
    padding-bottom: 3rem;
}

.haiia-activities-h2 {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--haiia-text);
    margin-bottom: 1.5rem;
}

.haiia-activities-lead {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--haiia-text-muted);
}

/* ==========================================================================
   H3 Section Title with Icon
   ========================================================================== */
.haiia-activities-h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--haiia-text);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.haiia-activities-h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--haiia-primary), var(--haiia-accent));
    border-radius: 2px;
}

.haiia-activities-icon {
    font-size: 1.75rem;
    line-height: 1;
}

/* ==========================================================================
   Description
   ========================================================================== */
.haiia-activities-desc {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--haiia-text-muted);
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   MVV Grid (ミッション・ビジョン・バリュー)
   ========================================================================== */
.haiia-activities-mvv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.haiia-activities-mvv-item {
    background: #fff;
    padding: 2rem;
    border-radius: var(--haiia-radius-lg);
    box-shadow: var(--haiia-shadow);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.haiia-activities-mvv-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--haiia-shadow-lg);
}

.haiia-activities-mvv-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--haiia-primary), var(--haiia-accent));
}

.haiia-activities-mvv-label {
    display: inline-block;
    background: var(--haiia-bg-dark);
    color: #fff;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    margin-bottom: 1rem;
}

.haiia-activities-mvv-item p {
    font-size: 1.05rem;
    margin: 0;
    color: var(--haiia-text);
    font-weight: 500;
}

/* ==========================================================================
   List Styles
   ========================================================================== */
.haiia-activities-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background: var(--haiia-bg-light);
    border-radius: var(--haiia-radius-lg);
    padding: 1.5rem 2rem;
}

.haiia-activities-list li {
    padding: 0.85rem 0 0.85rem 2rem;
    position: relative;
    color: var(--haiia-text);
    font-size: 1rem;
    line-height: 1.7;
    border-bottom: 1px dashed var(--haiia-border);
}

.haiia-activities-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.haiia-activities-list li:first-child {
    padding-top: 0;
}

.haiia-activities-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.1rem;
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, var(--haiia-primary), var(--haiia-accent));
    border-radius: 50%;
}

.haiia-activities-list li:first-child::before {
    top: 0.25rem;
}

.haiia-activities-note {
    display: block;
    font-size: 0.9rem;
    color: var(--haiia-text-muted);
    margin-top: 0.35rem;
    padding-left: 0.5rem;
}

/* Future List */
.haiia-activities-future-list {
    background: linear-gradient(135deg, var(--haiia-bg-light) 0%, #eef2ff 100%);
}

/* ==========================================================================
   Quote Section
   ========================================================================== */
.haiia-activities-quote-section {
    border-bottom: none;
    padding-top: 3rem;
}

.haiia-activities-quote {
    background: linear-gradient(135deg, var(--haiia-bg-dark) 0%, #1e293b 100%);
    color: #fff;
    padding: 3rem;
    border-radius: var(--haiia-radius-xl);
    margin: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.haiia-activities-quote::before {
    content: "\201C";
    position: absolute;
    top: 0.5rem;
    left: 1.5rem;
    font-size: 6rem;
    font-family: Georgia, serif;
    opacity: 0.1;
    line-height: 1;
}

.haiia-activities-quote p {
    font-size: 1.2rem;
    line-height: 2;
    margin: 0;
    color: #fff;
    position: relative;
    z-index: 1;
}

.haiia-activities-quote strong {
    color: #fff;
    font-weight: 700;
}

/* ==========================================================================
   Responsive - レスポンシブ
   ========================================================================== */
@media (max-width: 1024px) {
    .haiia-activities-mvv-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {
    .haiia-page-header {
        padding: 3rem 0;
    }

    .haiia-page-header .haiia-page-title {
        font-size: 1.85rem;
    }

    .haiia-activities-content {
        padding: 2rem 0;
    }

    .haiia-activities-section {
        padding: 2rem 0;
    }

    .haiia-activities-h2 {
        font-size: 1.5rem;
    }

    .haiia-activities-h3 {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .haiia-activities-icon {
        font-size: 1.5rem;
    }

    .haiia-activities-lead {
        font-size: 1rem;
    }

    .haiia-activities-lead br {
        display: none;
    }

    .haiia-activities-desc br {
        display: none;
    }

    .haiia-activities-mvv-item {
        padding: 1.5rem;
    }

    .haiia-activities-list {
        padding: 1.25rem 1.5rem;
    }

    .haiia-activities-list li {
        padding: 0.75rem 0 0.75rem 1.75rem;
    }

    .haiia-activities-quote {
        padding: 2rem 1.5rem;
    }

    .haiia-activities-quote p {
        font-size: 1.05rem;
        line-height: 1.9;
    }

    .haiia-activities-quote::before {
        font-size: 4rem;
        top: 0;
        left: 0.75rem;
    }
}

@media (max-width: 480px) {
    .haiia-page-header .haiia-page-title {
        font-size: 1.5rem;
    }

    .haiia-activities-h3 {
        font-size: 1.15rem;
    }

    .haiia-activities-note {
        padding-left: 0;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    .haiia-page-header,
    .haiia-activities-quote {
        background: #f0f0f0 !important;
        color: #000 !important;
    }

    .haiia-activities-quote p,
    .haiia-activities-quote strong {
        color: #000 !important;
    }

    .haiia-activities-mvv-item::before,
    .haiia-activities-list li::before {
        background: #ccc !important;
    }
}